3315666 - E3510 RADIO - Functional description (Sound System with CD player)
Functional description
The ICS display E60 shows the radio and integrated cellular 'phone functions, and also the connection to the CD player/changer, if present. Conventional radio connections P20 are connected to the back of the ICS unit: connector A for the fuel spply; connector C for connection with the radio / CD amplifier P70 and CD player/loader P75, located in the luggage compartment. The radio P20 is supplied directly from the battery (maxifuse CENTR of B5 ) - to pin 4 of connector A - through the fuse F4 of the junction unit B1 . Pin 8 of connector A is earthed at C15 . Pin 1 of connector A receives the speedometer signal from the instrument E50 - pin 8 of connector B. Pin 5 of connector A is connected with the power source/amplifier aerial P25 , which controls the aerial built into the heated rear window. In addition, the radio P20 is connected to the aerial by means of the specific coaxial cable. The connector C of P20 is connected to the CD player/changer P75 by pins 7, 8 ,9, 10, 11, 12, 18, 19 and 20: these lines provide the supply, control and connection by bus to the CD changer. The connector C of P20 is also connected to the radio amplifier / CD P70 - connector B - by pins 3, 4, 5 and 6; these lines send the loudspeaker amplification signals. The amplifier P70 is supplied directly from the battery to pins 8 and 19 of connector A - through the specific fuse B90 ; the pins 9 and 20 of connector A are earthed at C34 .Connector A of P70 also sends out the cables carrying the signals to the car's ten loudspeakers:
- pins 1 and 10 to the left front door speakers P35 and P45
- pins 2 and 11 to the right front door speakers P36 and P46
- pins 5 and 14 to the left rear door speakers P40 and P47
- pins 15 and 16 to the right rear door speakers P41 and P48
- pins 4 and 13 to the left rear speaker on the parcel rack P30
- pins 3 and 12 to the left rear speaker on the parcel rack P31